[U-Boot] [PATCH] ARM: tegra: Reserve 32MB for the Linux kernel

Tue Feb 12 16:03:14 UTC 2019

From: Jonathan Hunter <jonathanh at nvidia.com>

Booting recently Linux -next kernels on 32-bit Tegra devices has been
failing when using the 'multi_v7_defconfig' kenrel configuration because
the size of has grown such that it is overwriting the FDT blob.

Current Linux -next kernels built with the 'multi_v7_defconfig' have a
total size of ~19.5MB (where .text is ~12.5MB, .data is ~6.5MB and .bss
is ~0.5MB). Therefore, increase the memory location reserved for the
Linux kernel to 32MB from 16MB for 32-bit Tegra devices.

This change has been boot tested on Tegra20 Ventana, Tegra30 Cardhu and
Tegra124 Jetson TK1 with the Linux next tree (20190212).

Signed-off-by: Jonathan Hunter <jonathanh at nvidia.com>
---
 include/configs/tegra114-common.h | 14 +++++++-------
 include/configs/tegra124-common.h | 14 +++++++-------
 include/configs/tegra20-common.h  | 14 +++++++-------
 include/configs/tegra30-common.h  | 14 +++++++-------
 4 files changed, 28 insertions(+), 28 deletions(-)

diff --git a/include/configs/tegra114-common.h b/include/configs/tegra114-common.h
index ccfc516a8256..1aa44126455a 100644
--- a/include/configs/tegra114-common.h
+++ b/include/configs/tegra114-common.h
@@ -15,7 +15,7 @@
 /*
  * Miscellaneous configurable options
  */
-#define CONFIG_STACKBASE	0x82800000	/* 40MB */
+#define CONFIG_STACKBASE	0x83800000	/* 56MB */
 
 /*-----------------------------------------------------------------------
  * Physical Memory Map
@@ -36,13 +36,13 @@
  *   should not overlap that area, or the kernel will have to copy itself
  *   somewhere else before decompression. Similarly, the address of any other
  *   data passed to the kernel shouldn't overlap the start of RAM. Pushing
- *   this up to 16M allows for a sizable kernel to be decompressed below the
+ *   this up to 32M allows for a sizable kernel to be decompressed below the
  *   compressed load address.
  *
- * fdt_addr_r simply shouldn't overlap anything else. Choosing 32M allows for
- *   the compressed kernel to be up to 16M too.
+ * fdt_addr_r simply shouldn't overlap anything else. Choosing 48M allows for
+ *   the compressed kernel to be up to 32M too.
  *
- * ramdisk_addr_r simply shouldn't overlap anything else. Choosing 33M allows
+ * ramdisk_addr_r simply shouldn't overlap anything else. Choosing 49M allows
  *   for the FDT/DTB to be up to 1M, which is hopefully plenty.
  */
 #define CONFIG_LOADADDR 0x81000000
@@ -50,8 +50,8 @@
 	"scriptaddr=0x90000000\0" \
 	"pxefile_addr_r=0x90100000\0" \
 	"kernel_addr_r=" __stringify(CONFIG_LOADADDR) "\0" \
-	"fdt_addr_r=0x82000000\0" \
-	"ramdisk_addr_r=0x82100000\0"
+	"fdt_addr_r=0x83000000\0" \
+	"ramdisk_addr_r=0x83100000\0"
 
 /* Defines for SPL */
 #define CONFIG_SPL_TEXT_BASE		0x80108000
diff --git a/include/configs/tegra124-common.h b/include/configs/tegra124-common.h
index b275f795a35e..353068416423 100644
--- a/include/configs/tegra124-common.h
+++ b/include/configs/tegra124-common.h
@@ -17,7 +17,7 @@
 /*
  * Miscellaneous configurable options
  */
-#define CONFIG_STACKBASE	0x82800000	/* 40MB */
+#define CONFIG_STACKBASE	0x83800000	/* 56MB */
 
 /*-----------------------------------------------------------------------
  * Physical Memory Map
@@ -38,13 +38,13 @@
  *   should not overlap that area, or the kernel will have to copy itself
  *   somewhere else before decompression. Similarly, the address of any other
  *   data passed to the kernel shouldn't overlap the start of RAM. Pushing
- *   this up to 16M allows for a sizable kernel to be decompressed below the
+ *   this up to 32M allows for a sizable kernel to be decompressed below the
  *   compressed load address.
  *
- * fdt_addr_r simply shouldn't overlap anything else. Choosing 32M allows for
- *   the compressed kernel to be up to 16M too.
+ * fdt_addr_r simply shouldn't overlap anything else. Choosing 48M allows for
+ *   the compressed kernel to be up to 32M too.
  *
- * ramdisk_addr_r simply shouldn't overlap anything else. Choosing 33M allows
+ * ramdisk_addr_r simply shouldn't overlap anything else. Choosing 49M allows
  *   for the FDT/DTB to be up to 1M, which is hopefully plenty.
  */
 #define CONFIG_LOADADDR 0x81000000
@@ -52,8 +52,8 @@
 	"scriptaddr=0x90000000\0" \
 	"pxefile_addr_r=0x90100000\0" \
 	"kernel_addr_r=" __stringify(CONFIG_LOADADDR) "\0" \
-	"fdt_addr_r=0x82000000\0" \
-	"ramdisk_addr_r=0x82100000\0"
+	"fdt_addr_r=0x83000000\0" \
+	"ramdisk_addr_r=0x83100000\0"
 
 /* Defines for SPL */
 #define CONFIG_SPL_TEXT_BASE		0x80108000
diff --git a/include/configs/tegra20-common.h b/include/configs/tegra20-common.h
index 7f0a5292c2e9..04d4ff4992cb 100644
--- a/include/configs/tegra20-common.h
+++ b/include/configs/tegra20-common.h
@@ -16,7 +16,7 @@
 /*
  * Miscellaneous configurable options
  */
-#define CONFIG_STACKBASE	0x02800000	/* 40MB */
+#define CONFIG_STACKBASE	0x03800000	/* 56MB */
 
 /*-----------------------------------------------------------------------
  * Physical Memory Map
@@ -37,13 +37,13 @@
  *   should not overlap that area, or the kernel will have to copy itself
  *   somewhere else before decompression. Similarly, the address of any other
  *   data passed to the kernel shouldn't overlap the start of RAM. Pushing
- *   this up to 16M allows for a sizable kernel to be decompressed below the
+ *   this up to 32M allows for a sizable kernel to be decompressed below the
  *   compressed load address.
  *
- * fdt_addr_r simply shouldn't overlap anything else. Choosing 32M allows for
- *   the compressed kernel to be up to 16M too.
+ * fdt_addr_r simply shouldn't overlap anything else. Choosing 48M allows for
+ *   the compressed kernel to be up to 32M too.
  *
- * ramdisk_addr_r simply shouldn't overlap anything else. Choosing 33M allows
+ * ramdisk_addr_r simply shouldn't overlap anything else. Choosing 49M allows
  *   for the FDT/DTB to be up to 1M, which is hopefully plenty.
  */
 #define CONFIG_LOADADDR 0x01000000
@@ -51,8 +51,8 @@
 	"scriptaddr=0x10000000\0" \
 	"pxefile_addr_r=0x10100000\0" \
 	"kernel_addr_r=" __stringify(CONFIG_LOADADDR) "\0" \
-	"fdt_addr_r=0x02000000\0" \
-	"ramdisk_addr_r=0x02100000\0"
+	"fdt_addr_r=0x03000000\0" \
+	"ramdisk_addr_r=0x03100000\0"
 
 /* Defines for SPL */
 #define CONFIG_SPL_TEXT_BASE		0x00108000
diff --git a/include/configs/tegra30-common.h b/include/configs/tegra30-common.h
index 70964a90ceab..7012c3e54ccd 100644
--- a/include/configs/tegra30-common.h
+++ b/include/configs/tegra30-common.h
@@ -16,7 +16,7 @@
 /*
  * Miscellaneous configurable options
  */
-#define CONFIG_STACKBASE	0x82800000	/* 40MB */
+#define CONFIG_STACKBASE	0x83800000	/* 56MB */
 
 /*-----------------------------------------------------------------------
  * Physical Memory Map
@@ -37,13 +37,13 @@
  *   should not overlap that area, or the kernel will have to copy itself
  *   somewhere else before decompression. Similarly, the address of any other
  *   data passed to the kernel shouldn't overlap the start of RAM. Pushing
- *   this up to 16M allows for a sizable kernel to be decompressed below the
+ *   this up to 32M allows for a sizable kernel to be decompressed below the
  *   compressed load address.
  *
- * fdt_addr_r simply shouldn't overlap anything else. Choosing 32M allows for
- *   the compressed kernel to be up to 16M too.
+ * fdt_addr_r simply shouldn't overlap anything else. Choosing 48M allows for
+ *   the compressed kernel to be up to 32M too.
  *
- * ramdisk_addr_r simply shouldn't overlap anything else. Choosing 33M allows
+ * ramdisk_addr_r simply shouldn't overlap anything else. Choosing 49M allows
  *   for the FDT/DTB to be up to 1M, which is hopefully plenty.
  */
 #define CONFIG_LOADADDR 0x81000000
@@ -51,8 +51,8 @@
 	"scriptaddr=0x90000000\0" \
 	"pxefile_addr_r=0x90100000\0" \
 	"kernel_addr_r=" __stringify(CONFIG_LOADADDR) "\0" \
-	"fdt_addr_r=0x82000000\0" \
-	"ramdisk_addr_r=0x82100000\0"
+	"fdt_addr_r=0x83000000\0" \
+	"ramdisk_addr_r=0x83100000\0"
 
 /* Defines for SPL */
 #define CONFIG_SPL_TEXT_BASE		0x80108000
-- 
2.7.4

